초록 ▼

A flexible, impermeable, universally chemically resistant composite structure which may be fabricated into protective clothing useful, for example, in the handling and clean up of hazardous chemicals is provided for, which composite structure comprises a fabric substrate, and thermally-melt-bonded o

A flexible, impermeable, universally chemically resistant composite structure which may be fabricated into protective clothing useful, for example, in the handling and clean up of hazardous chemicals is provided for, which composite structure comprises a fabric substrate, and thermally-melt-bonded on both sides thereof, a coated film, which coated film comprises a PTFE film having a thermoplastic fluoropolymer coating on both sides thereof. Preferably, the fabric substrate of the composite structure has been treated with an antiwicking agent. A method for forming such composite structures is provided for, which method comprises thermally-melt-bonding a PTFE film having a thermoplastic fluoropolymer coating on both sides thereof to each side of a fabric substrate. Articles of protective clothing are also provided for which are fabricated from the subject composite structures.

대표청구항 ▼

A composite structure suitable for use as material for articles of protective clothing, which composite structure comprises a fabric substrate, and thermally-melt-bonded on both sides thereof, a coated film, which coated film consists essentially of a PTFE film having a thermoplastic fluoropolymer c

A composite structure suitable for use as material for articles of protective clothing, which composite structure comprises a fabric substrate, and thermally-melt-bonded on both sides thereof, a coated film, which coated film consists essentially of a PTFE film having a thermoplastic fluoropolymer coating on both sides thereof. The composite structure of claim 1, wherein said fabric substrate has a thickness of from about 0.010 to about 0.200″, and a weight of from about 2.0 to about 10.0 oz/sy, said PTFE film has a thickness of from about 0.0013 to about 0.003″, and a weight from about 2.6 to about 6.0 oz/sy, and said thermoplastic fluoropolymer coating has a thickness of from about 0.0001 to about 0.0019″, and a weight of from about 0.20 to about 2.0 oz/sy.